CFP Aquaculture & Hatchery Operations Flashcards
6 cards from real CFP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CFP Aquaculture & Hatchery Operations flashcards as text
What is the significance of the Viable Salmonid Population (VSP) framework used by NOAA in hatchery management?
Answer: It defines population viability based on abundance, productivity, spatial structure, and diversity
The VSP framework assesses population health using four attributes—abundance, productivity, spatial structure, and diversity—to guide recovery decisions.
What is the purpose of coded wire tags (CWTs) in hatchery fish management?
Answer: To allow hatchery fish to be identified and tracked after release, including at harvest
CWTs are small binary-coded stainless steel wires implanted in the snout of hatchery fish at release; they are detected magnetically at harvest to track survival and straying.
In hatchery egg incubation, what is the primary risk of excessive sediment loading on eggs?
Answer: Reduced oxygen delivery to developing embryos, causing increased mortality
Fine sediments clog the interstices between eggs, reducing intergravel water flow and oxygen supply to embryos, leading to suffocation and mortality.
Which approach is used in integrated hatchery programs to maintain genetic diversity while reducing domestication selection?
Answer: Rotating use of supplementation fish with wild fish as broodstock each generation
Regularly incorporating wild-caught broodstock into hatchery breeding ensures that domestication selection pressure is limited and wild genetic variation is preserved.
What is the primary regulatory oversight framework for aquaculture operations in the US?
Answer: A patchwork of federal, state, and local permits involving multiple agencies such as EPA, Army Corps of Engineers, and state fish agencies
US aquaculture is regulated by a complex multi-agency system including EPA (water quality), Army Corps (wetlands/water), NOAA (marine species), and state agencies.
What does 'net pen aquaculture' refer to, and what is a key environmental concern associated with it?
Answer: Open-water cages in marine environments; key concern includes waste discharge, disease transfer, and escapement of non-native or domesticated fish
Net pen aquaculture uses floating cages in open water, raising concerns about nutrient/waste discharge, spread of parasites like sea lice, and genetic impacts from escaped fish.